More from this Slideshow

A new diet arrives, another fades away. Should eating habits really be as fleeting as fashion trends? Let's face it: The best weight-loss strategies are the ones that stand the test of time.

Here, Health.com gathered 25 classic tips from their favorite health and nutrition experts. These simple strategies may not be as sexy as the latest fad diet, but they're guaranteed to never go out of style.

"Get six to eight hours of sleep a night. Without it, the appetite hormone ghrelin increases, which could result in weight gain. And schedule at least two three-minute breaks during the day to practice deep-breathing exercises. It will reduce the stress hormone cortisol, whichbuilds fat around your mid-section."